Is it Legal for Your Boss to Add You to a Work WhatsApp Group Without Permission?

Sarah Thompson
Published Aug 22, 2025


Imagine checking your phone and finding that your boss or a coworker has added you to a work-related WhatsApp group. Suddenly, your personal phone number is shared with others, and work messages start popping up during your free time. You might wonder: is this actually allowed?

According to Spain's Data Protection Agency (AEPD), using an employee's personal phone number to add them to a company chat without their permission is not allowed.

The General Data Protection Regulation (GDPR) states that a phone number is private information, so employers need your consent to use it for work groups. Companies in Spain have even faced fines of 500 euros for doing this without asking.

The rules are different if your company gives you a work phone and phone line. In this case, your boss has more freedom to organize work chats.

However, even then, they cannot expect you to answer messages outside of your normal work hours. The law, specifically Organic Law 3/2018, protects your right to rest, time off, and vacations.

If you are working from home, these rights still apply. Employers must respect your "digital disconnection," which means they can't require you to respond to work messages outside of working hours—even if digital communication is important for your job.

Sometimes, your employment contract may allow companies to use your personal phone in unusual situations, but this does not give them permission to add you to company chats without approval.

If your boss adds you to a WhatsApp group without asking, experts suggest letting them know in writing that you don’t want to be in the group. You have the right to say no, and your company must offer another way to communicate that doesn't involve your personal phone.

To sum up, your boss needs your permission before adding you to a work WhatsApp group, even if you’re using a company phone. Your privacy and your free time are protected by law.

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